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Commit bd82752a authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

vhost: make features 64 bit 



We need to use bit 32 for virtio 1.0.
Make vhost_has_feature bool to avoid discarding high bits.

Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: default avatarJason Wang <jasowang@redhat.com>
parent 9465a7a6

drivers/vhost/vhost.h

+3 −3
Original line number Diff line number Diff line
@@ -106,7 +106,7 @@ struct vhost_virtqueue { 
	/* Protected by virtqueue mutex. */

	struct vhost_memory *memory;

	void *private_data;

	unsigned acked_features;

	u64 acked_features;

	/* Log write descriptors */

	void __user *log_base;

	struct vhost_log *log;
@@ -172,8 +172,8 @@ enum { 
			 (1ULL << VHOST_F_LOG_ALL),

};



static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit)

static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)

{

	return vq->acked_features & (1 << bit);

	return vq->acked_features & (1ULL << bit);

}

#endif